Poole's Outline of 1 Samuel 12: A King Given in Anger

Samuel having appointed a king unto the people, testifieth his own integrity, to which they witness, 1-5. He setteth before them the sins of their ancestors, and their own sin in asking a king, 6-13; comforts them if they will obey the Lord; threateneth the disobedient; terrifies them by thunder in harvest: they confess their sin, and desire to be reconciled to the Lord, 14-19. He comforts and exhorts them to fear and serve the Lord; promising also to pray for them, 20-25.